Ocular leech infestation initially misdiagnosed as conjunctival pigmented nevus

Dear sir,Iam Dr.Wen-Wei Li,from the Department of Ophthalmology,Zhejiang Provincial People’s Hospital,Hangzhou,China.I write to present a case of ocular leech infestation initially misdiagnosed as conjunctival pigmented nevus.Although human interaction with leeches is not uncommon

Squeezing Enhancement of an Initially Squeezed Electromagnetic Field in Two-photon Interaction Dicke Model

The evolution of an initially squeezed electromagnetic field was studied by using two-photon interaction Dicke model and pertubation approach.It was found that under certain condition in two-photon Dicke model squeezing will be enhanced.The physical insight of this phenomenon is discussed.

Fatigue Behavior of Open-Holed CFRP Laminates with Initially Cut Fibers

Carbon fiber-reinforced plastic (CFRP) laminates with initially cut fibers (ICFs) have good formability without large degradation of static strength;however, their fatigue behavior has not been investigated thus far. In this paper, we investigated fatigue behavior and damage progress of open-holed CFRP laminates with ICFs having interlayers. Three types of CFRP laminates were employed: a laminate without ICF fabricated using an autoclave (Continuous-A), a laminate with ICF fabricated using an autoclave (ICF-A) and a laminate with ICF fabricated using press molding (ICF-P). First, fatigue test was conducted to obtain S (maximum stress)-N (the number of cycles to failure) curves in order to reveal fatigue strength. The fatigue tests for several specimens were interrupted at three prescribed numbers of cycles to observe damage progress. It is found that the Continuous-A laminate shows little strength degradation in the S-N curve while fatigue strength in both ICF laminates is decreased by approximately 30% at N of 106. In contrast, the damage progress of the ICF-P laminate is the least among the three laminates while the delamination progress at both edges and around the hole in the Continuous-A laminate is the most prominent.

Successful treatment of conversion chemotherapy for initially unresectable synchronous colorectal liver metastasis

A 72-year-old woman with a sigmoid colon cancer and a synchronous colorectal liver metastasis(CRLM),which involved the right hepatic vein(RHV)and the inferior vena cava(IVC),was referred to our hospital.The metastatic lesion was diagnosed as initially unresectable because of its invasion into the confluence of the RHV and IVC.After she had undergone laparoscopic sigmoidectomy for the original tumor,she consequently had 3 courses of modified 5-fluorouracil,leucovorin,and oxaliplatin(m FOLFOX6)plus cetuximab.Computed tomography revealed a partial response,and the confluence of the RHV and IVC got free from cancer invasion.After 3 additional courses of m FOLFOX6 plus cetuximab,preoperative percutaneous transhepatic portal vein embolization(PTPE)was performed to secure the future remnant liver volume.Finally,a right hemihepatectomy was performed.The postoperative course was uneventful.The patient was discharged from the hospital on postoperative day 13.She had neither local recurrence nor distant metastasis 18 mo after the last surgical intervention.This multidisciplinary strategy,consisting of conversion chemotherapy using FOLFOX plus cetuximab and PTPE,could contribute in facilitating curative hepatic resection for initially unresectable CRLM.

Size-dependent thermoelastic initially stressed micro-beam due to a varying temperature in the light of the modified couple stress theory

The bending of the Euler-Bernoulli micro-beam has been extensively modeled based on the modified couple stress(MCS)theory.Although many models have been incorporated into the literature,there is still room for introducing an improved model in this context.In this work,we investigate the thermoelastic vibration of a micro-beam exposed to a varying temperature due to the application of the initial stress employing the MCS theory and generalized thermoelasticity.The MCS theory is used to investigate the material length scale effects.Using the Laplace transform,the temperature,deflection,displacement,flexure moment,and stress field variables of the micro-beam are derived.The effects of the temperature pulse and couple stress on the field distributions of the micro-beam are obtained numerically and graphically introduced.The numerical results indicate that the temperature pulse and couple stress have a significant effect on all field variables.

Reflection of Plane Waves from a Free Surface of an Initially Stressed Transversely Isotropic Dissipative Medium

The governing equations of a transversely isotropic dissipative medium are solved analytically to obtain the speeds of plane waves. The appropriate solutions satisfy the required boundary conditions at the stress-free surface to obtain the expressions of the reflection coefficients of reflected quasi-P (qP) and quasi-SV (qSV) waves in closed form for the incidence of qP and qSV waves. A particular model is chosen for numerical computation of these reflection coefficients for a certain range of the angle of incidence. The numerical values of these reflection coefficients are shown graphically against the angle of incidence for different values of initial stress parameter. The impact of initial stress parameter on the reflection coefficients is observed significantly.

Bi-stable states of initially stressed elastic cylindrical shell structures with two piezoelectric surface layers

A theoretical model is proposed in this paper to predict the bi-stable states of initially stressed cylindrical shell structures attached by surface anisotropic piezoelectric layers.The condition for existence of bi-stability of the shell structural system is presented and analytical expressions for corresponding rolled-up radii of the stable shell are given based on the principle of minimum strain energy.The resulting solution indicates that the shell system may have two stable configurations besides its initial state under a combined action of the actuating electric field and initial stresses characterized by the bending moment.If the piezoelectric layer materials act as only sensor materials without the actuating electric field,initial stresses may produce the bi-stable states,but one corresponding to its initial state.For the shell without initial stresses,the magnitude in the actuating electric field determines the number of the stable states,one or two stable configurations besides the initial state.The theoretical prediction for the bi-stable states is verified by finite element method（FEM） simulation by using the ABAQUS code.

Reflection of Plane Waves from Free Surface of an Initially Stressed Rotating Orthotropic Dissipative Solid Half-Space

The governing equations of an initially stressed rotating orthotropic dissipative medium are solved analytically to obtain the velocity equation which indicates the existence of two quasi-planar waves. The appropriate particular solutions in the half-space satisfy the required boundary conditions at the stress-free surface to obtain the expressions of the reflec-tion coefficients of the reflected quasi-P (qP) and reflected quasi-SV (qSV) waves in closed form for the incidence of qP and qSV waves. A particular model is chosen for numerical computation of these reflection coefficients for a certain range of the angle of incidence. The numerical values of these reflection coefficients are shown graphically against the angle of incidence for different values of initial stress parameter and rotation parameter. The impact of initial stress and rotation parameters on the reflection coefficients is observed significantly.

Effect of irregularity on the propagation of torsional surface waves in an initially stressed anisotropic poro-elastic layer

The paper studies the propagation of torsional surface waves in an initially stressed anisotropic poro-elastic layer over a semi-infinite heterogeneous half space with linearly varying rigidity and density due to irregularity at the interface. The irregularity is taken in the half space in the form of a rectangle. It is observed that torsional surface waves propagate in this assumed medium. In the absence of the irregularity, the velocity equation of the torsional surface wave is also obtained. For a layer over a homogeneous half space, the velocity of torsional surface waves coincides with that of the Love waves.

Propagation of P-and S-waves in initially stressed gravitating half space

The present paper contributes in studying the phase velocities of P- and S-waves in a half space subjected to a compressive initial stress and gravity field. The density and acceleration due to gravity vary quadratically along the depth. The dispersion equation is derived in a closed form. It is shown that the phase velocities depend not only on the initial stress, gravity, and direction of propagation but also on the inhomogeneity parameter associated with the density and acceleration due to gravity. Various particular cases are obtained, and the results match with the classical results. Numerical investigations on the phase velocities of P- and S-waves against the wave number are made for various sets of values of the material parameters, and the results are illustrated graphically. The graphical user interface model is developed to generalize the effect.

Propagation of Love waves in non-homogeneous substratum over initially stressed heterogeneous half-space

The paper studies the propagation of Love waves in a non-homogeneous substratum over an initially stressed heterogeneous half-space. The dispersion equation of phase velocity is derived. The velocities of Love waves are calculated numerically as a function of kH and presented in a number of graphs, where k is the wave number, and H is the thickness of the layer. The case of Gibson＇s half-space is also considered. It is observed that the speed of Love waves is finite in the vicinity of the surface of the half-space and vanishes as the depth increases for a particular wave number. It is also observed that an increase in compressive initial stresses causes decreases of Love waves velocity for the same frequency, and the tensile initial stress of small magnitude in the half-space causes increase of the velocity.

Proximal-type epithelioid sarcoma of the vulva initially misdiagnosed as Bartholin cyst: A case report

Dear editor,Vulvar sarcomas are rare and represent 1%–3%of cancers in this region.1 Leiomyosarcoma is the most common type of vulvar sarcoma.In contrast,epithelioid sarcoma(ES)is extremely rare,accounting for around 1%of soft-tissue vulvar sarcomas.Among the ESs of the vulva,proximal variants tend to have a more aggressive clinical course,in comparison to distal variants.2 The treatment of choice in proximal-type ES of the vulva is surgical resection,usually with surgical margins greater than 2 cm.Due to the extreme rarity of these malignancies,clear algorithms for adjuvant treatment of these tumors have still not been established.Radiotherapy and/or chemotherapy may be indicated in some cases.

Reliable identification of 'truly low' thromboembolic risk in patients initially diagnosed with 'lone' atrial fibrillation:The Belgrade atrial fibrillation study

Background The CHA 2 DS 2-VASc schema has recently been introduced to complement the CHADS2 score and improve the identification of atrial fibrillation （AF） patients at ＇truly low risk＇ for thromboembolism.We tested the predictive ability of the CHA 2 DS 2-VASc,CHADS2 and van Walraven risk stratification schemes in a cohort of ＇lone＇ AF patients with a 12-year follow-up.Methods and Results We conducted a registry-based,observational cohort study of 345 patients initially diagnosed with ＇lone＇ AF between 1992 and 2007.At baseline,all patients had the CHADS2 and van Walraven scores of 0,and 262 （75.9%） had a CHA 2 DS 2VASc score=0.During follow-up （or within a year prior to stroke）,228 （66.1%）,234 （67.8%） and 150 patients （43.5%） retained the CHADS2,van Walraven and CHA 2 DS 2VASc scores of 0,respectively.The overall rate of ischemic stroke was 0.19 （95%CI：0.18-0.20） per 100 patient-years.In the multivariable analysis,only the CHA 2 DS 2-VASc score of 0 was significantly related to the absence of stroke （OR 5.1,95%CI：1.5-16.8,P=0.008）.Only the CHA 2 DS 2-VASc score had a significant prediction ability （c-statistic 0.72 [0.61-0.84],P=0.031）.Conclusions The CHA 2 DS 2-VASc score reliably identified the ＇lone＇ AF patients who were at ＇truly low risk＇ for thromboembolism,and was the only tested risk stratification scheme with a significant predictive ability for thromboembolism amongst lone AF patients.

Early aggressive versus initially conservative treatment in elderly patients with non-ST-segment elevation acute coronary syndromeaTitle and subTitle Breakaaaaaaaa randomized controlled trial

Abstract Objectives The authors sought to describe the association between post-procedural bleeding and long-term recurrent bleeding, major adverse cardiac events （MACE）, and mortality among older patients undergoing per-cutaneous coronary intervention （PCI）.

Qinghai 10 Million Tonne Grade Multiple Metal Mine Development Base has Initially Taken Shape

Recently it has been learned that,in 2014Qinghai completed 2.777 billion yuan of prospecting investment in the whole year,implemented a total of 703 prospecting projects,and obtained a group of new prospecting achievements,10 million tonnes grade multiple metal mine development base has initially taken shape.

Five Major State-Level Copper,Lead, Zinc Resource Succession Bases in Tibet Have Initially Taken Shape

According to the Chengdu Center of China Geological Survey,five major state-level copper-lead-zinc resource succession bases in Tibet have initially taken shape,featuring tremendous resource potentials.It has been learned that these five major resource succession bases are respectively copper-lead-zinc molybdenum iron prospecting development base in Central Tibet。

Qinghai 100 Billion Yuan Lithium Industry Base Has Initially Taken Shape

"Up till now,upstream R&D; enterprises of Qinghai Salt Lake lithium industry have made a number of breakthroughs,mid-to downstream industries and upstream industry accomplished connection,the industry has initially taken shape."On September 10,Zhou Weixing,Deputy Director-general of Qinghai

Thermoelastic waves in a fractional-order initially stressed micropolar diffusive porous medium

The research article is the analysis of wave propagation in an initially stressed micropolar fractional-order derivative thermoelastic diffusion medium with voids.The governing equations in the context of generalized fractional-order derivative thermo-elasticity are formulated and the velocity equations are obtained.The plane wave solution of these equations indicates the existence of six plane waves,namely coupled longitudinal displacement(cL),coupled thermal(cT),coupled mass diffusion(cMD),coupled longitudinal void volume fraction(cV),coupled transverse displacement(cT D),and coupled transverse micro-rotational(cT M)waves.The sets of coupled waves(cL),(cT),(cMD)and(cV)are found to be dis-persive,attenuating and influenced by the presence of thermal,diffusion and voids parameters in the medium.The speeds of coupled transverse displacement(cT D),and coupled transverse micro-rotational(cT M)waves are not affected by thermal,diffusion and void parameters.The speeds of the plane waves,cL,cT,cMD,and cV are computed for a particular material and plotted against the thermal parameter,fre-quency,initial stress,diffusion and void parameters.

Corrigendum to“Nitrosamines crisis in pharmaceuticals-Insights on toxicological implications,root causes and risk assessment:A systematic review”[J.Pharm.Anal.14(2024)100919]

Original statement in the Section 2:2.Literature search Our primary screening of 180 articles yielded the relevant data for this study.2.1.Study selection A total of 180 articles spanning from 1960 to the present day,including original research,reviews,case reports and studies reporting nitrosamine impurities above the no-observed-adverse-effect levels(NOAEL)established by regulatory agencies,were initially screened.During the primary screening,we considered factors such as relevance,publication date,access to the full article text,and content.